Water-proof fabric



1 UNITED STATES PATENT ()FFICEQ PETER PETERSON, OFPHILADELPHIA,PENNSYLVANIA.

WATER-PROOF FABRIC.

SPECIFICATION forming part of Letters Patent No. 227,573, dated May 11,1880.

Application filed January 21, 1880.

To all whom "it may concern:

Be it known that I, PETER PETERSON, of the city and county ofPhiladelphia, in the State of Pennsylvania, have invented certain newand useful Improvements in 'Waterproofin g and Preserving Fabrics, ofwhich improvements the following is a specification.

The object ofmy invention is to preserve textile fabrics, speciallycanvas and goods analogous thereto, from the deteriorating effects ofwater and dampness; and my improvements consist in fabrics treated withcertain primary and secondary waterproofing compositions, all ashereinafter more fully set forth.

To carry out my invention the canvas or other fabric which is tobe-waterproofed is coated first with a primary and afterward with asecondary composition, the ingredients and proportions of whichcompositions are as follows: Assuming that a sufficient quantity isdesired to cover about five hundred square yards of material, theprimary composition consists of seventeen pounds scalded rye-flour, oneand a half pound burnt alum, and six gallons water, the water beingheated to the boiling-point and maintained thereat until the rye-flourand alum are thoroughly mixed and dissolved.

The primary composition is applied to the material to be waterproofed bya brush or other convenient means, and the material is then dried eitherby natural or artificial heat, as may be found most desirable.

A corresponding quantity of the secondary and a half pound melted rosinsoap, these in gredients being thoroughly mixed and incorporatedtogether.

A coating of the secondary composition is applied, most conveniently bymeans of a brush, to one or both sides of the fabric which has beentreated with the primary composition, and as soon as the same is dry theoperation is complete, and the fabric will be found to fully resist thedecay or mildew induced by exposure to water or a damp atmosphere, aswell as the attacks of moths, without becoming hard or stiff and withoutdeveloping any tendency in the preservative compositions to be worn orwashed out of its texture.

I claim as my invention and desire to secure by Letters Patent- A newarticle of manufacture, consisting of canvas or other textile fabrichaving a primary coating or layer of a sizing composition, consisting ofscalded rye-flour and burnt alum dissolved in water, and a secondarycoating or layer of linseed-oil, litharge, earth paint, and

rosinsoap, as described.

PETER PETERSON.

' Witnesses:

J. SNoWDEN BELL, W. K. SHRYooK.

